| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 20 |
16.8%
|
| 2 | Every few weeks | 18 |
15.1%
|
| 3 | Every few months | 17 |
14.3%
|
| 4 | Not at all | 64 |
53.8%
|
| Sysmiss | 29 |